/* AI公司官网样式 - 北京飞雪凌云智能科技有限公司 */

/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主题色彩 */
    --primary-color: #3b82f6;
    --primary-dark: #2563eb;
    --secondary-color: #64748b;
    --accent-color: #818cf8;
    --gradient-start: #3b82f6;
    --gradient-end: #8b5cf6;
    
    /* 中性色 - 深色主题 */
    --text-primary: #f8fafc;
    --text-secondary: #e2e8f0;
    --text-light: #94a3b8;
    --bg-white: #0f172a;
    --bg-light: #1e293b;
    --bg-dark: #020617;
    --border-light: #1e293b;
    
    /* 字体 */
    --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-dark);
    scroll-behavior: smooth;
}

/* 通用样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.3s ease;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: white;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(251, 191, 36, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
}

.logo-image {
    height: 40px;
    width: auto;
    transition: all 0.3s ease;
    transform-origin: center;
}

.logo-image:hover {
    transform: scale(1.05);
    animation-play-state: paused;
}

@keyframes logoRotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary-color);
    color: white;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 英雄横幅 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    color: white;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="white" opacity="0.5"/><circle cx="80" cy="40" r="1" fill="white" opacity="0.3"/><circle cx="40" cy="80" r="1.5" fill="white" opacity="0.4"/></svg>');
    animation: float 20s ease-in-out infinite;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 2;
}

.hero-title-main {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: 8px;
}

.hero-title-sub {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 300;
    opacity: 0.9;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 8px 16px;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 0 10px rgba(255, 255, 255, 0.3); }
    to { box-shadow: 0 0 20px rgba(255, 255, 255, 0.5), 0 0 30px rgba(37, 99, 235, 0.3); }
}

.hero-description {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin: var(--spacing-lg) 0;
    opacity: 0.95;
}

.hero-description strong {
    color: #fbbf24;
    font-weight: 600;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    flex-wrap: wrap;
}

.stat-item-inline {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.stat-item-inline:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.stat-item-inline .stat-number {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #fbbf24;
}

.stat-item-inline .stat-text {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    position: relative;
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-ecosystem {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.core-ai {
    font-size: 4rem;
    z-index: 3;
    animation: pulse 3s ease-in-out infinite;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.5);
}

.product-orbit {
    position: absolute;
    width: 100%;
    height: 100%;
}

.product-item {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 16px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    animation: orbit 20s linear infinite;
}

.product-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

.product-icon {
    font-size: 1.5rem;
}

.product-label {
    font-size: var(--font-size-xs);
    color: white;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
}

.product-1 {
    top: 10%;
    right: 15%;
    animation-delay: 0s;
}

.product-2 {
    bottom: 15%;
    right: 10%;
    animation-delay: -5s;
}

.product-3 {
    bottom: 10%;
    left: 15%;
    animation-delay: -10s;
}

.product-4 {
    top: 15%;
    left: 10%;
    animation-delay: -15s;
}

.ai-waves {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.wave {
    position: absolute;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: wave-expand 4s ease-out infinite;
}

.wave-1 {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 50%;
    margin-left: -75px;
    margin-top: -75px;
    animation-delay: 0s;
}

.wave-2 {
    width: 200px;
    height: 200px;
    top: 50%;
    left: 50%;
    margin-left: -100px;
    margin-top: -100px;
    animation-delay: 1s;
}

.wave-3 {
    width: 250px;
    height: 250px;
    top: 50%;
    left: 50%;
    margin-left: -125px;
    margin-top: -125px;
    animation-delay: 2s;
}

@keyframes wave-expand {
    0% {
        transform: scale(0.5);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* 核心业务 */
.services {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 4px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
}

.service-features li::before {
    content: "";
    position: absolute;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%233b82f6" d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z"/></svg>');
    background-repeat: no-repeat;
    background-position: center;
    width: 16px;
    height: 16px;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.service-card.featured {
    position: relative;
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.02), rgba(124, 58, 237, 0.02));
    transform: scale(1.02);
}

.service-card.featured:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
}

.service-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xs);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

/* 产品特色 */
.product-features {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-light);
}

.features-showcase {
    max-width: 1000px;
    margin: 0 auto;
    margin-bottom: var(--spacing-2xl);
}

.feature-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.feature-content h3 {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.feature-content p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.feature-points {
    list-style: none;
    margin: 0;
    padding: 0;
}

.feature-points li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-base);
}

.demo-interface {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.interface-header {
    background: var(--bg-white);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-light);
}

.interface-controls {
    display: flex;
    gap: 6px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #ef4444; }
.control.yellow { background: #f59e0b; }
.control.green { background: #10b981; }

.interface-title {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.interface-content {
    padding: var(--spacing-md);
    background-color: var(--bg-white);
}

.interface-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    background: var(--bg-light);
    transition: all 0.3s ease;
}

.interface-item:hover {
    background: var(--bg-dark);
}

.item-icon {
    font-size: 1.2rem;
}

.item-text {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
}

.item-status {
    font-size: var(--font-size-xs);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    background: var(--bg-light);
    /* border-color: var(--text-light); */
    border: 1px solid var(--text-light);
    color: var(--text-secondary);
    font-weight: 500;
}

.item-status.active {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
}

/* 核心产品展示 */
.core-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.product-showcase {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    color: var(--text-primary);
}

.product-showcase:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.product-showcase.featured {
    grid-column: span 2;
    border: 2px solid var(--primary-color);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
    color: var(--text-primary);
}

.product-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    position: relative;
}

.product-icon-main {
    font-size: 3rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    width: 80px;
    height: 80px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-md);
}

.product-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: white;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.product-content {
    padding: var(--spacing-lg);
    color: var(--text-primary);
}

.product-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.product-subtitle {
    font-size: var(--font-size-sm);
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.product-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.feature-item:hover {
    background: rgba(37, 99, 235, 0.2);
    transform: translateY(-1px);
}

.feature-icon {
    font-size: 1.5rem;
    margin-top: 2px;
}

.feature-text h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.feature-text p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
}

.product-features-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.product-highlights {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
    flex-wrap: wrap;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
    padding: 8px 12px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.highlight-icon {
    font-size: 1rem;
}

.highlight-text {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--primary-color);
}

.product-status {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: white;
    background: linear-gradient(135deg, #ef4444, #dc2626);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.product-status.enterprise {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.product-status.mobile {
    background: linear-gradient(135deg, #10b981, #059669);
}

.product-metrics {
    display: flex;
    gap: var(--spacing-lg);
    margin: var(--spacing-md) 0;
}

.metric-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.metric-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2px;
}

.metric-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.product-cta {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-sm);
}

.product-features-list {
    list-style: none;
    margin: var(--spacing-md) 0;
    padding: 0;
}

.product-features-list li {
    margin-bottom: var(--spacing-sm);
    padding-left: 0;
    color: var(--text-primary);
    line-height: 1.6;
    font-size: var(--font-size-sm);
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.product-features-list li strong {
    color: var(--primary-color);
    font-weight: 600;
}

.innovation-section {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    margin-top: var(--spacing-xl);
    color: var(--text-primary);
}

.innovation-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.innovation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.innovation-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.innovation-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.05);
}

.innovation-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.innovation-card h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.innovation-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: var(--font-size-sm);
}

/* 生态系统 */
.ecosystem-section {
    background: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    margin-top: var(--spacing-lg);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}

.ecosystem-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.ecosystem-card {
    background: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.ecosystem-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.05);
}

.ecosystem-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.ecosystem-icon {
    font-size: 1.5rem;
}

.ecosystem-header h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
}

.ecosystem-features {
    list-style: none;
    margin: 0;
    padding: 0;
}

.ecosystem-features li {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    padding-left: 16px;
    position: relative;
}

.ecosystem-features li::before {
    content: "▶";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 10px;
    top: 2px;
}

/* 企业信念 */
.belief-section {
    background: var(--bg-light);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    margin-top: var(--spacing-lg);
    color: var(--text-primary);
    text-align: center;
    border: 1px solid var(--border-light);
}

.belief-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.belief-quote {
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-light);
}

.belief-text {
    font-size: var(--font-size-lg);
    line-height: 1.8;
    font-style: italic;
    margin: 0;
}

.belief-text strong {
    color: #fbbf24;
    font-weight: 700;
}

.belief-values {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.value-item-inline {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.05);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.value-item-inline:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.value-icon-inline {
    font-size: 1.2rem;
}

.value-text-inline {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

/* 行业应用场景 */
.industry-applications {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-light);
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.application-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    color: var(--text-primary);
}

.application-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: rgba(255, 255, 255, 0.05);
}

.app-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.app-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.app-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.app-features {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.feature-tag {
    font-size: var(--font-size-xs);
    padding: 4px 8px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

/* 技术优势 */
.advantages {
    padding: var(--spacing-2xl) 0;
}

.tech-stack-showcase {
    position: relative;
    width: 100%;
    height: 400px;
    margin: var(--spacing-2xl) 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-stack-center {
    position: relative;
    z-index: 3;
}

.core-tech {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.3);
    animation: pulse 3s ease-in-out infinite;
}

.core-tech-icon {
    font-size: 3rem;
    margin-bottom: 8px;
}

.core-tech h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 4px;
}

.core-tech p {
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.tech-rings {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.tech-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    animation: rotate 30s linear infinite;
}

.ring-1 {
    width: 280px;
    height: 280px;
    top: 50%;
    left: 50%;
    margin-left: -140px;
    margin-top: -140px;
}

.ring-2 {
    width: 360px;
    height: 360px;
    top: 50%;
    left: 50%;
    margin-left: -180px;
    margin-top: -180px;
    animation-direction: reverse;
    animation-duration: 40s;
}

.tech-item {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: var(--bg-light);
    padding: 12px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
    cursor: pointer;
    transition: all 0.3s ease;
    animation: counter-rotate 30s linear infinite;
}

.ring-2 .tech-item {
    animation: counter-rotate-reverse 40s linear infinite;
}

.tech-item:hover {
    transform: scale(1.1);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.tech-icon {
    font-size: 1.2rem;
}

.tech-name {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-primary);
    text-align: center;
    white-space: nowrap;
}

/* 技术项目位置 */
.ring-1 .tech-item:nth-child(1) { top: 0; left: 50%; margin-left: -30px; }
.ring-1 .tech-item:nth-child(2) { top: 50%; right: 0; margin-top: -25px; }
.ring-1 .tech-item:nth-child(3) { bottom: 0; left: 50%; margin-left: -30px; }
.ring-1 .tech-item:nth-child(4) { top: 50%; left: 0; margin-top: -25px; }

.ring-2 .tech-item:nth-child(1) { top: 15%; right: 15%; }
.ring-2 .tech-item:nth-child(2) { bottom: 15%; right: 15%; }
.ring-2 .tech-item:nth-child(3) { bottom: 15%; left: 15%; }
.ring-2 .tech-item:nth-child(4) { top: 15%; left: 15%; }

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes counter-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}

@keyframes counter-rotate-reverse {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.advantage-item {
    position: relative;
    padding: var(--spacing-xl);
    background: var(--bg-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.advantage-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.advantage-number {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
}

.advantage-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.advantage-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-tag {
    font-size: var(--font-size-xs);
    padding: 4px 8px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(37, 99, 235, 0.2);
    font-weight: 500;
}

/* 成功案例 */
.success-cases {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.case-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    color: var(--text-primary);
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    background: var(--bg-white);
}

.case-card.featured {
    grid-column: span 2;
    border: 2px solid var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.case-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
}

.case-icon {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    width: 50px;
    height: 50px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.case-meta {
    flex: 1;
}

.case-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.case-category {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 500;
    background: rgba(37, 99, 235, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

.case-content {
    padding: var(--spacing-lg);
    color: var(--text-primary);
    background-color: var(--bg-white);
}

.case-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.case-metrics {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.metric {
    text-align: center;
    flex: 1;
}

.metric-value {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 2px;
}

.metric-label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.case-tags {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
    background-color: var(--bg-white);
}

.tag {
    font-size: var(--font-size-xs);
    padding: 4px 8px;
    background: var(--bg-light);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.about {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: flex-start;
}

.company-intro {
    margin-bottom: var(--spacing-xl);
}

.intro-subtitle {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--primary-color);
    margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
}

.intro-subtitle:first-child {
    margin-top: 0;
}

.about-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.about-description strong {
    color: var(--primary-color);
    font-weight: 600;
}

.business-areas {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.business-area {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--text-light);
    transition: all 0.3s ease;
}

.business-area:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.area-icon {
    font-size: 1.5rem;
    margin-top: 4px;
}

.area-content h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.area-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.mission-text {
    font-style: italic;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.value-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--text-light);
}

.value-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.value-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.value-item h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.value-item p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
}

.about-stats {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    justify-content: space-between;
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* 发展历程 */
.company-timeline {
    background: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-light);
}

.timeline-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.timeline {
    position: relative;
    padding-left: var(--spacing-lg);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--gradient-start), var(--gradient-end));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -24px;
    top: 4px;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 2px var(--primary-color);
}

.timeline-content {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.timeline-year {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.timeline-desc {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 团队介绍 */
.team-intro {
    background: var(--bg-light);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.team-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.team-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.team-member {
    text-align: center;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.team-member:hover {
    background: var(--bg-white);
}

.member-avatar {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xs);
}

.member-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.member-role {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 4px;
}

.member-desc {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.4;
}

.about-visual {
    display: flex;
    flex-direction: column;
}

.image-placeholder {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

/* 联系我们 */
.contact {
    padding: var(--spacing-2xl) 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 4px;
}

.contact-details h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-details p {
    color: var(--text-secondary);
}

/* 表单样式 */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}
/* 悬浮视频 */
.floating-video {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 280px;
    height: 160px;
    z-index: 1000;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    border: 2px solid var(--primary-color);
}

.floating-video:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.3);
}

.floating-video iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* 页脚 */
.footer {
    background: var(--bg-light);
    padding: var(--spacing-2xl) 0;
    color: var(--text-secondary);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.footer-logo-image1 {
    height: 50px;
    width: auto;
    /* filter: brightness(0) invert(1); */
    transition: all 0.3s ease;
    transform-origin: center;
}

.footer-logo-image1:hover {
    transform: scale(1.05);
    filter: brightness(0) invert(1) drop-shadow(0 0 10px rgba(255,255,255,0.3));
    animation-play-state: paused;
}

.footer-description {
    color: #94a3b8;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: flex-start;
    justify-content: space-between;
}

.footer-section {
    flex: 0 0 auto;
    min-width: 150px;
    margin-bottom: var(--spacing-md);
}

.footer-section img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: var(--spacing-md);
    text-align: center;
    color: #94a3b8;
}

/* 动画 */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes orbit {
    0% { transform: rotate(0deg) translateX(120px) rotate(0deg); }
    100% { transform: rotate(360deg) translateX(120px) rotate(-360deg); }
}

/* 增强视觉效果 */
.product-showcase {
    transition: all 0.3s ease;
    will-change: transform;
}

.product-showcase:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.tech-item {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.tech-item:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.2);
}

/* 滚动指示器 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    z-index: 9999;
    transition: width 0.1s ease;
}

/* 加载动画 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 平滑滚动增强 */
html {
    scroll-behavior: smooth;
}

.form-input {
    background-color: rgba(255, 255, 255, 0.4);
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .logo-image,
    .footer-logo-image1 {
        animation: none !important;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --text-primary: #000000;
        --text-secondary: #333333;
        --bg-white: #ffffff;
        --border-light: #000000;
    }
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --text-light: #999999;
        --bg-white: #1a1a1a;
        --bg-light: #2a2a2a;
        --bg-dark: #0a0a0a;
        --border-light: #333333;
    }
    
    .hero {
        background: linear-gradient(135deg, #1a1a2e, #16213e);
    }
    
    .product-showcase,
    .service-card,
    .case-card {
        background: var(--bg-white);
        border-color: var(--border-light);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .logo-image {
        height: 32px;
    }
    
    .footer-logo-image1 {
        height: 40px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title-main {
        font-size: var(--font-size-3xl);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .company-timeline,
    .team-intro {
        margin-bottom: var(--spacing-lg);
    }
    
    .timeline {
        padding-left: var(--spacing-md);
    }
    
    .timeline-marker {
        left: -18px;
    }
    
    .feature-main {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .core-products-grid {
        grid-template-columns: 1fr;
    }
    
    .product-showcase.featured {
        grid-column: span 1;
    }
    
    .product-features-grid {
        grid-template-columns: 1fr;
    }
    
    .innovation-grid {
        grid-template-columns: 1fr;
    }
    
    .innovation-section {
        padding: var(--spacing-lg);
    }
    
    .ecosystem-grid {
        grid-template-columns: 1fr;
    }
    
    .ecosystem-section {
        padding: var(--spacing-lg);
    }
    
    .belief-section {
        padding: var(--spacing-lg);
    }
    
    .belief-values {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .belief-text {
        font-size: var(--font-size-base);
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-card.featured {
        grid-column: span 1;
    }
    
    .case-metrics {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .about-stats {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-illustration {
        width: 200px;
        height: 200px;
    }
    
    .ai-icon {
        font-size: 4rem;
    }
    
    .element {
        font-size: 1.5rem;
    }
}